GM7110-12TA5T GAMMA [Gamma Microelectronics Inc.], GM7110-12TA5T Datasheet

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GM7110-12TA5T

Manufacturer Part Number
GM7110-12TA5T
Description
1A STEP-DOWN VOLTAGE SWITCHING REGULATOR
Manufacturer
GAMMA [Gamma Microelectronics Inc.]
Datasheet
Description
GM7110 of regulators provides all the active functions
1A load with excellent line and load regulation.
GM7110 is available in fixed output volt ages of 3.3V,
5V, 12V, 15V and a versatile Adjustable output
Features include internal frequency compensation and
replacement for popular three-terminal linear regulators,
GM7110 performs well with standard
External shutdown is included with 50 uA(typical)
protection under fault conditions.
for a step- down (buck) switching regulator, and drives
version. These regulators are simple to use and require
a minimum number of external components.
a fixed-
and is requiring a smaller heat sink or even no heat sink.
several manufacturers, and simplifying the design of
switch-mode power supplies. GM7110 guarantees ±4%
tolerance on output voltage within specified input voltages
and output load conditions, and ±10% on the oscillator
frequency.
standby current. The output switch has cycle-by-cycle
current limiting as well as thermal shutdown for full
Application
TYPICAL APPLICATION
Pre-regulator for linear regulators
High-efficiency step-down buck regulator
Unregulated
frequency oscillator. GM7110 high-efficiency
7V - 40V
DC Input
MICROELECTRONICS
A
100 µF
C
IN
+
+V
A
IN
1
3
GND
GM7110-5.0
ON / OFF
inductors from
1A STEP-DOWN VOLTAGE SWITCHING REGULATOR
5
Feedback
4
Output
2
Power Management
Features
D1
1N5819
On-card/ board switching regulators
Positive to negative converter (buck-boost
3.3V, 5V, 12V, 15V and
versions
1.23V to 37V ±4% max over line and load
Adjustable version output voltage range
conditions
1A output current
Requires Only 4 External Components
High Efficiency
TTL shutdown capability and low power
Thermal shutdown, current limit protection
Uses standard inductors
52 kHz fixed frequency internal oscillator
standby mode
330 µH
L1
+
330 µF
C
OUT
www.gammamicro.com
Adjustable output
5.0V, 1A
Regulated
Output
GM7110
)
1

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GM7110-12TA5T Summary of contents

Page 1

... GM7110 of regulators provides all the active functions for a step- down (buck) switching regulator, and drives 1A load with excellent line and load regulation. GM7110 is available in fixed output volt ages of 3.3V, 5V, 12V, 15V and a versatile Adjustable output version. These regulators are simple to use and require a minimum number of external components ...

Page 2

... GM7110-5.0TB5T GM7110-5.0TB5BT GM7110-5.0TA5R GM7110-5.0TA5T GM7110-5.0TC5T GM7110-5.0TC5R GM7110-12TB5T GM7110-12TB5BT GM7110-12TA5R GM7110-12TA5T GM7110-15TB5T GM7110-15TB5BT GM7110-15TA5R GM7110-15TA5T * TB5B: Bent and Staggered Leads of TO-220 package ** For detail Ordering Number identification, please see last page. 2 Power Management 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR ...

Page 3

... V V -1.0 Internally Limited - 150 +150 +260 VALUE -40 T 125 J 40 ON/OFF Internal 5 ON/OFF Regulator Comparator 1 AMP Switch + Output - Driver 2 Thermal Current 3 Reset Shutdown Limit GND GM7110 UNIT °C °C °C UNIT ° OUT out ...

Page 4

... V = 30V Feedback Voltage 18V V IN Efficiency V = 18V ELECTRICAL CHARACTERISTICS: GM7110-ADJ (Specifications with standard type face are for T = 25°C, and those with boldface type apply over full Operating Temperature Range) Parameter Feedback Voltage V = 12V Feedback Voltage V = 12V, I ...

Page 5

... Statistics Quality Control methods. Note 3: External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the GM7110 is used as shown in the Figure 2 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. ...

Page 6

... Figure 1 below should be kept as short as possible. Single- point grounding (as indicated in Figure 1) or ground plane construction should be used for best results. When using the Adjustable version, place the programming resistors as close as possible to GM7110, to keep the sensitive feedback wiring short. ...

Page 7

... Output 2 330 µ MBR360 C OUT 330 µ OUT REF R1 V OUT -1) V REF Figure 3. Dropout Voltage 2.0 1 LOAD 1 200mA LOAD 0.5 0 1.0 -75 -50 - JUNCTION TEMPERATURE (°C) GM7110 V =5.0V OUT OUT R = 0.2W IND 50 75 100 125 150 7 ...

Page 8

... 100 AMBIENT TEMPERATURE (°C) Figure OFF Pin Current (Sinking 100 125 0 GM7110 = 32 ° ° ° ° 40V IN -40°C T 125 ° ...

Page 9

... DP0.20 4.60 8.40 1.2 5-0.8 ± 0.10 1.7(TYP) 3° 3° 10.00 ± 0.20 TO-263-5 PACKAGE OUTLINE DIMENSIONS 9.90 15° 0.40 1.20 3° 4.60 1.50 DP0.20 9.20 15.3 1.20 4.90 1.70 TYP 0.80 (1.70 ± 0.20) 0.40 1.75 3° 3° R 0.3 0.90 15.30 10.00 Power Management 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR 4.50 ± 0.20 +0.1 1.30 -0.05 3° 7.0 ± 0.20 9.20 ± 0.20 3° 3° 3-R0.2 +0.1 0.50 -0.05 2.40 ± 0. 0.3 4.50 1.30 Pad Layout 0.10 3° 2.00 2.40 R0.30 0.75 R0.30 2.54 0.50 10.0 8.0 7.0 4.40 R 0.45 7.2 9.20 4.90 Unit: mm GM7110 9.97 ± 0.20 8.0 ± 0.20 7.0 Unit: mm 17.5 9 3.8 1.7 1.07 Units ...

Page 10

... Inches ( ) mm GM7110 0.18 ± 0.004 4.57 ± 0.1 0.05 ± 0.004 1.27 ± 0.1 0.05 ± 0.004 1.27 ± 0.1 0.358 ± 0.008 9.1± 0.2 0.996 ± 0.008 25.3± 0.2 0.105 ± 0.006 2.76± 0.15 0.173 ± 0.006 4.4 ± ...

Page 11

... A A MICROELECTRONICS ORDERING NUMBER GM 7110 A TB5 T Gamma Micro. Circuit Type Power Management 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Shipping R: Tape & Reel T: Tube Output Voltage A: Adj, 3.3: 3.3V 5.0: 5.0V, 12: 12V 15: 15V GM7110 Package TA5: TO-263-5 TB5: TO-220-5 TC5: TO-252-5 11 ...

Page 12

... A MICROELECTRONICS 12 Power Management A 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR GM7110 ...

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